Step 1.
Make a pinwheel base.
additional information
- Arrange it so that there are two triangular flaps on the right, two triangular flaps on the left, and the horizontal slit is on the front side.
- The diagonals of the base square are valley folds.
Step 2.
Fold from right to left upwards the upper right triangular flap, using the existing valley fold of the upper right half diagonal.
Step 3.
Fold from right to left downwards the lower right triangular flap, using the existing valley fold of the lower right half diagonal.
additional information
- The folding has 8 points, 4 on the right side, and 4 on the left side.
- The left part is made up of two independent triangular flaps side by side, oriented at 9 o'clock.
- The right part of the fold is a trapezoid, whose small vertical base is the right edge of the fold.
Step 4.
Make an oblique valley fold, bringing from left to right downward the upper half of the large base of the trapezoid toward the upper corner of the small base.
additional information
- The valley fold should start from the center of the fold.
Step 5.
Make an oblique valley fold, bringing from left to right upward the lower half of the large base of the trapezoid toward the lower corner of the small base.
additional information
- The valley fold should start from the center of the fold.
Step 6.
Rotate the fold a quarter turn counterclockwise.
additional information
- The lower part consists of two independent triangular flaps, side by side, oriented at 6 o'clock.
- There is a left tip, a lower left tip, a lower right tip, and a right tip.
Step 7.
Form a diagonal valley fold, bringing from left to right upwards, the left vertical edge of the lower right flap, against the lower corner of the right vertical edge of the folding.
additional information
- The valley fold must start from the center of the fold.
Step 8.
Form a diagonal valley fold, bringing from right to left upwards, the right vertical edge of the lower left flap, against the lower corner of the left vertical edge of the folding.
additional information
- The valley fold must start from the center of the fold.
- The right and left parts of the folding are symmetrical.
- the lower and upper parts of the fold are not.
Step 9.
Rotate the fold a quarter turn counterclockwise, then flip the fold upside down.
additional information
- the front side is smooth.
Step 10.
Flip the top flap over the bottom flap, using the existing fold of the horizontal axis of symmetry.
additional information
- the front and back flaps are symmetrical.
- the front flap is on top, with two long pointed tips whose points meet at the middle of the top edge of the fold.
- these two long pointed tips are right triangles.
- the short side of the right triangles on the right is vertical.
- the short side of the right triangles on the left is horizontal.
- if this is not the case, turn the folding from right to left.
Step 11.
Form a valley fold by bringing the right edge of the long tapered point on the right, along its hypotenuse.
Crease the fold well, and let it fold.
Step 12.
Form a valley fold by bringing the right edge of the long tapered point on the left, along its hypotenuse.
Crease the fold well, and let it fold.
Step 13.
Turn the folding from right to left.
additional information
- the front flap A is on top, two long tapered points, whose tips meet, in the middle of the upper edge of the folding.
- these two long tapered points are right triangles.
- the short side of the right triangle on the left is vertical.
- the short side of the right triangle on the right is horizontal.
Step 14.
Form a valley fold by bringing the left edge of the long pointed tip on the right along its hypotenuse.
Crease the fold well, and let it fold.
Step 15.
Form a valley fold by bringing the left edge of the long pointed tip on the left along its hypotenuse.
Crease the fold well, and let it fold.
Step 16.
Turn the folding from right to left.
additional information
- the small side of the left pointed tips is horizontal.
- the small side of the right pointed tips is vertical.
Step 17.
Form an oblique valley fold by bringing the small side of the right pointed tip from bottom to top towards the left, horizontally.
Crease the fold well, and let it fold.
Step 18.
Turn the folding from right to left.
Step 19.
Form an oblique valley fold by bringing from bottom to top towards the right, the small side of the left pointed tip, horizontally.
Mark the fold well, and leave it folded.
Step 20.
Tilt the front flap from bottom to top around the horizontal axis of symmetry.
Step 21.
Form a valley fold by tilting from bottom to top, the lower edge of the fold, by a few millimeters.
Step 22.
Form a valley fold by tilting from top to bottom, the upper edge of the fold, by a few millimeters.
Step 23.
Form a valley fold by tilting from right to left, the right edge of the fold, by a few millimeters.
additional information
- the three folds that were just created could be compared to hems.
Step 24.
Flip the top flap over the bottom flap around the horizontal axis.
Step 25.
Place the fold vertically, with the 4 tapered points resting on the table.
additional information
- The front legs of the animal are on the right, and the hind legs on the left.
Step 26.
At the hind legs, unfold the very small triangles against the table to form the feet.
Step 27
Create a fish base.
additional information
- Place it open in a horizontal position, with the small triangular flaps against the table.
- The center of the fold is the intersection point of the small vertical diagonal and the large horizontal diagonal.
Step 28.
Make a horizontal valley fold, bringing the top point down to the center of the fold.
Carefully crease the fold, then unfold.
Step 29.
Make a horizontal valley fold by bringing the lower point up to the center of the folding.
Carefully crease the fold then unfold.
Step 30.
Turn the folding from right to left, and position it so that the small flaps at the base of the fish are oriented at 12 o'clock.
Step 31.
Make a horizontal valley fold by bringing down the free tip of the small front right flap to the center of the folding.
Carefully crease the fold, and leave it folded.
additional information
- the small flap created is a right triangle with the free tip pointing at 6 o'clock.
Step 32.
Make an oblique valley fold by bringing the hypotenuse of this small triangle along the upper horizontal edge of the same triangle.
Carefully crease the fold, and let it fold.
additional information
- the small tip is now oriented at 9 o'clock, and slightly overlaps the small left flap of the fish base.
Step 33.
Gently lift the small left flap of the fish base to pass the small tip protruding from the small right flap over it.
Step 34.
Make a horizontal valley fold by bringing the free tip of the small front left flap from top to bottom onto the center of the folding.
Carefully crease the fold, and let it fold.
additional information
- the small flap created is a right triangle, with the free tip oriented at 6 o'clock.
Step 35.
Make an oblique valley fold by bringing the hypotenuse of this small triangle along the horizontal top edge of the same triangle.
Carefully crease the fold, and let it fold.
additional information
- the small tip is now oriented at 3 o'clock, and slightly overlaps the small right flap.
Step 36.
Turn the folding from right to left.
additional information
- the small flaps are on the table side.
Step 37.
Form an oblique valley fold by bringing the top right edge from top to bottom to the left, along the small horizontal diagonal.
Crease well, then unfold.
Step 38.
Form an oblique valley fold by bringing the top left edge from top to bottom to the right, along the small horizontal diagonal.
Crease well, then unfold.
Step 39.
Flip the left flap of the folding over onto the right flap, using the existing valley fold corresponding to the vertical symmetry axis.
Rotate the fold a quarter turn clockwise.
additional information
- The general shape of the fold is a large triangle, with a left tip, a right tip, and a bottom tip.
- The top edge is horizontal, and two small overlapping tips oriented at 12 o’clock extend beyond the fold.
- The two small tips are located slightly to the right, relative to the vertical axis of symmetry.
- To the right of these small tips, an oblique line oriented at 5 o’clock connects the top edge to the bottom right edge.
Step 40.
At the intersection point between the top edge and the oblique line, form a vertical valley fold by folding the right tip of the fold from right to left.
Well crease the fold, unfold, then transform this valley fold into a mountain fold, then unfold.
Step 41.
Remove the folding from the table, and hold it with your left hand.
additional information
- the bottom tip of the front and back flaps is facing the table.
- the left thumb is against the front flap, below the small points that protrude from the top edge.
- the left index finger is against the back flap, below the small points that protrude from the top edge.
Step 42.
Slide the right thumb between the front and back flaps, to the right of the diagonal line, to open the right tip.
Step 43.
With your right hand, push the right tip of the folding to the left.
additional information
- the vertical crease disappears inside the right tip.
- the right tip of the fold has tilted, and is now oriented between 4 o'clock and 5 o'clock.
Step 44.
Locate the center of the top edge of the tilted right tip.
Step 45.
At the marked point, make a valley fold perpendicular to the lower edge of the tilted tip.
Crease well, then unfold.
Step 46.
Turn the previous fold into a mountain fold, unfold, then turn this valley/mountain fold into an inside reverse fold.
Step 47.
Bring the tip to the right, to make it stick out slightly from the mouth.
Step 48.
Fold the lower tip of the front flap inside the folding, using the existing horizontal crease.
Step 49.
Fold down the lower tip of the back flap, inside the crease, using the existing horizontal crease.
Step 49.
Place this fold, which corresponds to the head, back, and tail of the animal,
straddling the first fold which corresponds to the body and legs.
Be sure to place the ears on the side of the front legs!